CAShapeLayer 自定义圆角

最新推荐文章于 2022-03-31 10:01:42 发布

原创最新推荐文章于 2022-03-31 10:01:42 发布 · 1.3k 阅读

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本文介绍如何使用Objective-C创建一个带有特定圆角的矩形CAShapeLayer，并将其添加到视图中。通过设置CAShapeLayer的各种属性如边框颜色、填充颜色、线宽等来实现定制化的显示效果。

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//create shape layer
    CAShapeLayer *shapeLayer = [CAShapeLayer layer];
    shapeLayer.strokeColor = [UIColor redColor].CGColor;
    shapeLayer.fillColor = [UIColor clearColor].CGColor;
    shapeLayer.lineWidth = 5;
    shapeLayer.lineJoin = kCALineJoinRound;
    shapeLayer.lineCap = kCALineCapRound;

    //add it to our view
    [self.view.layer addSublayer:shapeLayer];

    //set path
    CGRect rect = CGRectMake(50, 50, 100, 100);
    CGSize radii = CGSizeMake(20, 20);
    UIRectCorner corners = UIRectCornerTopRight | UIRectCornerBottomRight | UIRectCornerBottomLeft;
    //create path
    UIBezierPath *path = [UIBezierPath bezierPathWithRoundedRect:rect byRoundingCorners:corners cornerRadii:radii];
    shapeLayer.path = path.CGPath;